Division Chief, Respiratory Medicine, The Hospital for Sick Children

Senior Scientist, Physiology & Experimental Medicine, Research Institute

Professor, Paediatrics, University of Toronto

H.E. Seller’s Chair in Cystic Fibrosis

Dr. Ratjen is conducting multiple clinical trials addressing cystic fibrosis lung disease, including new therapeutic strategies to target the underlying defects, treatment of airway infections, airway inflammation and other important aspects of the disease. He also studies other lung diseases.

CHILD Study Investigator

Member, Scientific Advisory Committee

Dr. Ratjen was an investigator on the CHILD sub-study “Pediatric reference equations for multiple breath washout technique.”

  • Institution: Hospital for Sick Children
  • Location: Toronto, ON
  • Website